$ multichain-cli str publishmulti s1 '[{"key":'k2', "data":'12'},{"key":'k2', "data":'13'},{"key":
'k3' ,"data":'uu'}]'
{"method":"publishmulti","params":["s1","[{\"key\":k2, \"data\":12},{\"key\":k2, \"data\":13},{\"key\":k3 ,\"data\":uu}]"],"id":"44294372-1702192055","chain_name":"str"}
error code: -32601
error message:
Method not found